Re: Upgrade to Kernel 3.2
I just did this on a machine yesterday
Add the squeeze-backports repository to Synaptic
In Settings - > Preferences -> Distribution
set it to prefer versions from squeeze-backports
You'll then be able to install the 3.2 kernel. linux-image-3.2.0-0.bpo.2-686-pae (3.2.18-1~bpo60+1) for a 32bit install, or linux-image-3.2.0-0.bpo.2-amd64 (3.2.18-1~bpo60+1) for a 64bit install.
Don't forget to install the headers as well - either linux-headers-686-pae or linux-headers-amd64
If you are using one of the proprietary video drivers for nVidia for ATI you will need to rebuild your driver for the new kernel after you reboot. If you used sgfxi before, it will still be there to run. If not, it's a good idea to download it now and read the directions so you're ready.
Lastly, I've found that Synaptic doesn't always update the /bootvmlinuz & /boot/initrd.img symlinks to point at the new kernel, leaving it installed but not available in the boot menu.
Open a root Dolphin File Manager and check to see. Hovering over the symlink will show what it's linked to in the bottom of the frame. If they're still linked to the old kernel then fix them.
The easiest way I've found is to delete vmlinuz, then click and drag the vmlinuz-3.2.0-0.bpo.2-686-pae file an inch to the right, select Link here and type in the name vmlinuz. Do the same for the initrd.img link with the appropriate initrd file.
Reboot into your new kernel. If you get a black screen Console terminal, then you are running propretary ATI or nVidia drivers that need rebulding for the new kernel. Log in as root and run sgfxi to rebuild them.
Don't forget to change Synaptic back to preferring the highest version (or preferring versions from mepis if that's where you had it set).